Packaging apparatus



13 Sheets-Sheet 1 ESQ.

Feb. 15, 1949. .1. RIEMER PACKAGING APPAJRA'JUS Filed Aug.l 29. 194e Feb. l5, 1949. J. RIEMER PACKAGING APPARATUS .13 Sheets-Sheet 3 Filed Aug. 29, 1946 J. RIEMER PAGKAGING APPARATUS Feb. 15, 1949.

15 She'ets-Sheet 4 Filed Aug. 29, 1.946

J. RIEMER 2,461,569

` PACKAGING APPRATUS Feb. 15, 1949.

Filed Aug, 29, 1946 13 Sheets-Sheerl 5 Fi 6y j fu j/z lf2 15 Sheets-Sheetv J. RIEMER PACKAGING APPARATUS QN ASA m TAKS m NWN NQQN WNW ...m Krx A www .A SN @A Filed Aug. 29, 1 946 Feb. 15, 1949.

Feb. 15, 1949. J, lmEMER v 2,461,569

PACKAGING APPARATUS l Filed Aug. 29, 194e y 1s sheets-sheet 7 Feb. l5,I 1949 J. Rl-Mr-:R 2,461,569

PACKAGING APPARATUS l Filed Aug. 29. 194e 15 sheets-sheet s Il .l

QN .mwmw

Feb. 159v 1949.

PACKAGING APPARATUS Filed Aug. 29. 1946 13 Sheets-Sheet. 9

J. RIEMER 2,461,569

wron, iemer Feb. l5, 1949.

Filed Aug. 29. 1946 J. RIEMl-:R

PACKAGING APPARATUS fg f3 -13 Shee'ts-Sheet 10 Feb. 15, 1949. J. RlEMER 2,461,569-

PAGKAGING APPARATUS Filed Aug. 29. 1946 15 Sheets-Sheet 11 Feb. l5, 1949. l J. RIEMER f 2,461,569v

PACKAGING APPARATUS Filed Aug. 29. 1946 13 Sheets-Sheet 12- www Feb. 15, 1949. J. RIEMER 2,461,569

PACKAGING APPARATUS Filed Aug. 29, 1946 Patented Feb. 15, 1949 PACKAGING APPARATUS John Riemer, Green Bay, Wis., assigner to Kraft Foods Qompany, a corporation of Delaware Application August 29, 1946,-Serial No. 693,782

This invention relates to packagingapparatus, and more particularly to apparatus for setting up and assembling a container comprising a tubular body sleeve and a cap-like box member for one end of said sleeve to cooperate therewith to form an open-ended receptacle, and mechanism for forming another cap or box like section and for applying same to said open-ended receptacle to close the same.

The mechanism referred to comprises a pair of units of mechanism which may be closely coupled to form a completely formed and closed empty receptacle, or separated and associated with intervening receptacle lining mechanism, filling mechanism, and liner sealing mechanism; to form a filled, liner sealed and closed package.

rEhe main objects of the invention are to provide efiicient 'mechanism for forming packages of the character above explained; to provide mechanism of the character indicated which may be readily adjusted to form packages of diierent dimensions; to provide apparatus of the character indicated which may be successfully operated at a high rate of speed; and, in general, it is the object of the invention to provide improved box making equipment or packaging apparatus of the character indicated.

Other objects and advantages of the invention will be understood by reference to the following specification and the accompanying drawings 9 claims. (ci. ca -39) (13 sheets) wherein there is described and illustrated apparatus embodying a selected form of the invention.

In the drawings:

Fig. l is a diagrammatic illustration representing the relationship ci packaging apparatus embodying box and cover forming units according to the present invention;

Fig. 2 is a plan view;

Fig. 3 is a side elevation;

Fig. 4 is a section on the line 4 4 of Fig. 2 on a somewhat larger scale than Fig. 2;

Fig. 5 is a plan section on the line 5 5 of Fig.

Fig. 6 is a plan section on the line 5 6 of Figs. 3 and 7;

Fig. 'l is a vertical section on the line '6 7 of Fis. 3;

8 is a vertical section on tlie'line 8 8 of Fig. 3;

Fig. 9 and 1G are vertical sections respectively on; the lines 9 9 and id l of Fig. 4;

Fig. ll is a vertical section on the line H ll of Fig. 7: A v

Fig. 12 is a perspective illustrating a form of box blank which is converted into a box by the machine; Y

Fig. 13 is a side elevation of a portion of a unit cf mechanism which forms and applies coversto boxes which are formed by the mechanism shown in Figs. l to 1l, inclusive," and which may be lined, filled and sealed by intervening units of mechanism; y

Figs. 14 and 15 are sections respectively on the lines M Ill and |5-I5 of Fig. 13;

Fig. 16 is a plan of the mechanism illustrated in Fig. 13;

Fig. 17 is avertical section on the line H l'i of Fig. 16;

Fig. 18 is a vertical section on the line |8 |8 of Fig. 13; and

Figs. 19, 20, 21, and 22 are perspectives illustrating various steps in the formation of a package by the illustrated mechanism.

The improved mechanism villustrated in the drawings and hereinafter to be described embodies a magazine for holding a stack of carton blanks of the character shown in Fig. 12, and it is provided with mechanism for feeding such blanks one by one Vinto mechanism `which. will form the same into an open-topped receptacle such as represented at l in Figs. 19v to 22, inelusive. The blank shown in Fig. 12 embodies a central bottom forming panel 2, side wall forming panels 3 3, end wall forming panels 4 5, and end flaps 5 5 extending from the ends of the respective side wall panels 3 3. The side and end wall panels 3 3 and 4 4 are folded upwardly relative to the bottom wall panel 2 to form the four sides of the receptacle l and the end flaps 5 5 are positioned inside the end bular body member 1 is first formed and then brought into engagment with the blank from which the receptacle I is formed, the blank being forced through a form die by the tubular body 'l lwhich serves as a mandrel about which the receptacle I is formed.

The container embodying the receptacle l and and the tubular body 1 may then be manually or automatically lined with" a suitable liner such l as indicated at 3' in'Fig. 20,and the lined-reliar to that shown in l2, such blank being again formed into a receptacle which may be the saine as the receptacleY i;

Machines for inserting the liner 8, filling the lined receptacle and closing and sealing the liner,

are known in the package lling and `closing art,

and are not a part of the present invention. Such machines may, however, be associated with the mechanisms for forming and assembling the receptacle I and the tubular body l; andfor forming and applying the cover 9, the arrangement being preferably such that there is a continuity of operation which makes for high speed operation.

The mechanism for forming the receptacle l and'thebody 7, and for assembling these elements is shown-in Figs. 1 to 11, inclusive. Figs. 13 to i8, inclusive represent the unit of mechanism which forms and applies the cover member 9.

The apparatus for forming the receptacle l embodies a magazine for holding a stack of blanks such as represented inFig. 12, the magazine comprising a pair'oiupright members I8 and H for guiding the opposite-ends of the blanks, a pair of upright members I2 and I3 for engaging the leading sid-e edgesof theblanks, and a pair-of upright members III and l5 disposed opposite to the meme bers I 2 and I3 for engaging the rear edges of the blanks. The magazine members l, IIs I2 and I3 are iikedlys'ecured to a normally stationary cross bar I 6 which'is carried by brackets l'I--I-'L the latter being `suitably mounted o n the table or top plate I8 vofthe machine. The rear-members I and l5 are similarly vcarried by a cross bar I9,

which `isinturn carried by a bracket 2 9, the latter ybeing adjustably mounted on the table top i3 by a suitable ,clamping screw arrangement indicated atA 2 Iand elongated'slot 22. Theadjustable mounting ofthe bracket Zpermits adjustment of the spacing of the members i4 and I5 relative to the front members I? and VI3 so as to accommodate between these frontV and rear members carton blanks of different sizes. The end members i3 and Il are similarly adjustably mounted-on the cross 'bar kIt to permit said members Il! andl II to be adjusted relative to each other to receive between themblanks of different lengths.

The front and rear members l2, i3, I4 and l5 are provided at their lower ends with irl-turned ledge forming portions ,23 which support the stack of blanksl in the magazine.

The box blanks are fed downwardly one by one from the bottom of the magazine by vacuum means comprising a pair of vacuum grippers 24 and 25 which are carried by the upperends ofV short pipe lengths 2li-2G which extend upwardly from and communicate with a manifold bracket 21. The bracket 2'! is hollw as indicated at 28 (see Figs. 4 and 9) andthe interior of said bracket communicates through a valve structure 29 with an exhaust pump or other source of vacuum.

The manifold bracket 2'! is carried by a pair of upperlinks or'arms 3G" and 3l and by a lower link or arm 32, the said'links or-arms having inner ends pivoted tovsuitable ears or lugs extending from the manifold' bracket 2? as best shown in Figs. 4 and 9. Said links or arms 33', 3l andv 32 haven theirV outer ends pivotally mountedv in a bracket 33 in such an arrangement that the arms constitute a parallel link arrangement serving to maintain the bracket 2? and the grippers extending upwardly therefrom in substantially vertical position notwithstanding vertical rocking movement which is imparted to the lower arm "i2 by means presently to be described. The bracket 33 is horizontally mounted in a suitably slotted'supponting plate 34 which is rigidly secured to the-angle iron end frame member 35. A screw 3S threaded'through an opening in the frame 35 and having its inner end suitably anchored to the bracket 33 facilitates adjustment o f the position of the bracket 33 and of the Vacnum grippers 2li. The adjustment thus made possible permits positioning of the vacuum grippers at the ldesiredpoint intermediate the opposite side edges of the carton blanks in the magazine.

The arrangement is such that when the grippers are moved upwardly into contact with the bottom surface oi the lowermost blank in the magezine, there will be a strong vacuum attachment ofv the lowermost blank to the gripper so that upen downward movement of the grippers, the lowermost blank will be pulled out of the magazine and deposited on the table i8 in front of feeding mechanism which will presently be described;

When a box blank is delivered to the table i3 in the manner just described, the vacuum in the grippers should be broken and relieved so as to permit subsequent movement of the blank laterally edgewise away from the grippers after which the grippers may again be raised to their gripping position as illust-rated in Fig. 4.

The vacuum control valve 2S may consist of a in'ain body 3l' iixedly mounted to suitable bracket means such as indicated at 38 on a transverse frame member 3S. A valve stem lil depends from the manifold. 23 and is slidable in the bore of the valve body 3?. Said valve stem iii is of tubular form having its lower end closed. At one munication-between the interior of the valve and conduit 42 which is connected to a vacuum pump or other source of vacuum. The valve stem it is also provided with a vent or vacuum relief opening 43 which is adapted to register at proper times with a relief or vent opening 64 in the Valve body 31. The position of the vacuum conduit t2. the relief opening l and the valve openings @i and 43 is such that when the gripper is in its elevated position communication will be established between the vacuum line 42 through the valve stem opening il to the gripper. However, when the gripper is lowered to a predetermined position its vent opening 53 is brought into registry with the vent opening M so as to break the vacuum in the gripper to thereby release the blank which is then delivered to the table i8.

The grippers 2li are reciprocated in properly timed relation to Athe other operating clemente of' the apparatus by a box cam iii which acts on a roller carried by a rod it which has its upper end pivot-ed as shown at d? to the lower 32 of the parallel link structure for guiding the vacuum grippers.

The valve body 25% is preferably movably mounted in the forked end portion d'8 oi the bracket so that said valvebody may shift to any extent required by the movement oi the valve stem element 4B.

'.liheY carton blank moved downwardly by the grippers 24 is delivered to the position indicated in dotted lines at B in Fig. 4 immediately in front of the upwarly extending hook end 49 of a feeding pawl 5i). The feeding pawl 50 is carried by a shaft 5| which is journalled in suitable bosses 52-52 which extend upwardly from a plate 53, the latter being slidably mounted in an opposed pair of channel members 54--54' (see Fig. 9). The plate 53 is connected by means of a link 55 to another plate 53a which is also slidable in said channels 54--54. The last-mentioned plate 53a is in turn connected :by another link 55a to athird sliding plate 53h which is also slidable in said opposed channels 5ft-54. The three sliding plates 53, 53a and 53h are reciprocated in said channels 54 by means of a rock arm 56 which is carried by a vertically disposed rock shaft 51, the free end of said arm 56 being connected by means of link 58 to said link 55a and sliding plate 53h. The rock shaft 51 is actuated as best shown in Figs. 3 and 5 by means of a cam 59 carried by a cam shaft 60. The cam shaft 60 and another cam shaft 6i (Fig. 5) are interconnected by bevel gears 62 and these shafts are suitably driven by a chain drive indicated at 62 (Fig. 5) from a prime mover or other suitable connection. The cam 59 acts on a roller 63 carried by a rod Sli so as to reciprocate said rod, it being understood that the cam 59 is a box cam which positively effects reciprocation of said rod. The rod 6d is connected by means of a link 55 to an arm 66 which is `secured to said rock shaft 51 so that reciprocating motion of the rod 64 is transformed into rocking movement of the vertical shaft 51.

Forward movement of the slide plate 53 will, of course, carry with it the feeding dog 5i! so that the blank delivered to the position B in front of the hook 49 will be advanced to the position represented by the blank shown at B2 in Fig. 4. From the B2 blank position a feeding pawl 61 carried by the shaft 5i will advance a blank to the B3 blank position at the same time that the blank in the position B is advanced to the B2 position. Similarly, a feeding pawl 61a carri-ed by the plate 53a will 'advance a blank from the B3 blank position to the B4 blank position.

Another feeding pawl 61h carried by the slide plate 53th will advance a blank from the Bil position and cause the same to be deposited on the upper end of a female forming die 68. A blank positioned on top of the female forming die 58 is indicated at B5 in Fig. 11. i

The feeding pawls 61, 61a and 61h preferably comprise pairs of pawls spaced from each other for engagement with spaced portions of the respective blanks as is best represented in Fig. 9. The blanks are supported by portions of the table plate I8 between upstanding side guides 68-69 and they are'neld down on said .table plate by means of overlying guide rods lll- 1G which are suitably anchored at their ends on the respective adjacent side guides69--6S- The pawls 61a and 61h, like the pawl 61, are secu-red to their respective lshafts 5m and 5l?) which Iare journalled in lugs or ears 52a and 52h respectively which extend upwardly from the sliding plates 53a and 53h respectively. Suitable tension springs indicated at 1I in Fig. 4 are stretched between portions of the respective sliding plates 53, 53a., 53h and suitable bent sup-- porting pins which project upwardly and laterally from portions of short larms 12 which extend from the shafts 5I, 5|a and 5lb as shown. The arms 12 have free end portions which are adapted to bear on the respective slide plates 53,"j535a` and 53h to limit the rocking movement imparted to the feed dogs 6 1, 61a and G'lb by the said springs' Upon return movement of the feed plates 53, 53a and 53h, the pawls 61, 61a land 61h are depressed by the overlying box kblanks so as to ride under said blanks. rocked upwardly but there is no objection to suc'h upward movement of the pawl iii) sincev there would at that time be no box blank in the position During the movementof the box blanks from the position B2 to the position B3, adhesive is applied in the areas represented at @-6 in Fig. i3. For that purpose, there is provided a receptacle 1S for liquid adhesive 1li'. Said receptacle straddles the path of travel of the box blanks and is sup-ported on the table plate iS at points outwardly of the respective box blanks. The receptacle contains a pair `of rollers 'i5 which are adapted -to pick up a coating of the adhesive and apply it to a similar pair of transfer or platen rollers 16 which are also journalled in the receptacle. Said transfer rollers 16 may have associated with them a suitable doctor blade 11 for controlling the amount of adhesive which will be carried by the surface of the rollers. The rollers 16 are adapted to be engaged by the coating surfaces 13-18 of coating segments 16 which are carried by a shaft Sie. rThe shaft S6 is suitably journialled in bracket-s such as indicated at 8l (see Figs. 4 and 10) and it is connected by gearing indicated at 82 to a suitably journalled shaft 63 which is driven by a chain drive 8d from the cam shaft SB. The shaft iii is tl iereby driven in predetermined timed relation to the feed movements of the box blanks 'and the timing is, of course, such that the coating surfaces of the segments will engage the required portions of each of the boX blanks passing under the shaft i3d.

The adhesive receptacle 13 with its rollers 15 and 16 is normally heid in the required position for applying adhesive o the coating surfaces of the segments 19 by means of one or more eccentrically mounted rollers 85. the latter being carried by a shaft suitably journalled on the brackets l1 of the box blank magazine. The eccentric rolls 85 are adapted to be manually turned so as to permit the receptacle to be moved toward the box blank magazine thereby to move the adhesive transfer roller 16 away from the path of movement of the coating segments 19 when desired. This arrangement also permits accurate adjustment of the position of the adhesive transfer rollers 16 relative to the path of travel of the coatJ ing surfaces of the coating segments 1i). The coating segments may be also adjusted by means of adjusting screws Si-St which have their opposite end portions Oppositely threaded and engaged with suitably threaded openings in the brackets 8l and fixed brackets 81-81 which are mounted on the table plate l. The normal slack in the driving chain 34 will permit a desirable amount of adjustment of the coating segments by means of thedescribed adjusting screws BSU-86. The

described adjustability of the adhesive container.

89, the same being spaced from each other a dis-. tance approximately equal' t0 J` ust slightly mo'ref than the irontV to rear dimension of the boit The feed pawi 56 is thereby' blanks or just slightly more as clearly indicatedv in Fig. 7. When the box blank B5 is fed to the B'blank position, the ank will come to: rest in the B5 position of Fig'. il at the top edge of the die by reason of engagement oi the corner flap portions 5 of the blank with corner portions l 93 (Figs. 2 and il) of the die S5. It will be understood that although the blank is scored or creased as aforesaid lto facilitate folding the same into box form, it is nevertheless stili enough t be self-supporting in flat condition as illustrated in Fig. 11 by engagement of its corner ilaps 5 with theunderlying supporting portions S3.

A tubular body member 'e' is formed and positioned above the box blank B and is fed downwardly together with the box blank B5 through the die t8 which is so formed as to fold the box blank around the lower portion of the tubular body member as is shown in l1 where one of the tubular bodies l is shown seated within a box or receptacle in the lower portion ci the die and below the box blank B5.

The tubular body member l is formed from a suitable elongated and scored or creased blank, as heretofore explained, a stack $4 of such blanks being placed in a magazine eli provided as a part of the machine. The magazine et consists of a bottom plate 9S and a plurality of upwardly extending rear posts Si, a pair `of end posts 98 and a plurality of front posts d@ which are so arranged as to conne and support the stack` l or" bod31 blanks. The rear posts Sl' and end posts 98 extend upwardly directly from the plate Se, but the front posts sil are suitably supported in such a manner that their lower ends are spaced from the table 9S a distance slightly greater than the thickness of the body blanks. The body blanks are fed from the bottom of the stack one by one by means of a reciprocating slide ltti which has forwardy extending end arm portions it! arranged to engage the rear edge or the lowermost body blank near the ends thereof as is best shown in Fig. 2.

The pusher ills is slidably mounted on the table and is guided thereon in slots lil-2 through which portions EDB of the pusher extend. The pusher vportions iElS have secured to them merobers |822 which have depending lugs lili provided with laterally extending pins or studs (see Fig."7).

The pusher is reciprocated by means of a box cam lill carried by the cam shaft @i which acts on a roller carried by a rod H28 which has its lower end forked to straddle the cam shaft 6l so as to be guided thereby for vertical movement, the upper end of said rod 98 being pivoted as shown at it to the free end of an arm il@ earried by a rock shaft lll (see Figs. 5, 7 and 8). The rock shaft ll! has secured to it a pair of rock armsl lZ-i l2 (see Figs. 6 and '1) which extend upwardly and have their upper ends forked to straddle the studs li which extend from the depending brackets |35 of the pusher member itl). 4It will be seen that vertical reciprocating motion imparted to the rod |08 by the cam im will be transformed by the bell crank leversarrangement of the arms l lll and1||2 into horizonv tal reciprocation of the pusher member H10.

The lowermost body blank, upon being fedr from the magazine 95, gravitates over the rounded forward portion H3 of the table plate 96 and comesto rest in a vertically disposed position in front the vertical portion l i4 oi said table plate (see Fig. 7) The body blank rests on ledges H5 and lit formed by a portion of grilldike frames lll and il, respectively, "ne curved bars il of which are provided for supporting the body blank during` its folding into tubular form as will presently be explained, said curved bar portions |l9 of the grills may be rigidly connected or formed integral with said ledge portions H5 and H6, and their opposite ends are rigidly or integrally connected to bar portions |20 and |2| respectively. The grills i? and l i8 are not required to support much weight, and they may be adequately supported by attachment to the said wall H4.

A mandrel |22 is supported in vertically aligned relation to the opening through the forming die t8, the said mandrel being sup.

ported for vertical movement by attachment to a bracket or arm 23 which is secured to the upper end ot a vertically slidably mounted shaft ifl. One end of the mandrel is spaced from the said wall lill sufciently to permit the body blank to enter the space between the mandrel and said wall lll and means are provided for acting on said blank to fold it around said mandrel. Folding of the blank occurs when the mandrel is in a lowered position as illustrated in full lines in Fig. '7. The folding mechanism comprises a plate 25 which has a pair of folcl-` ing wings |2$-l28 hingedly connected to its opposite ends as shown at |2|27. The plate |25 is carried by one end of a horizontally, slidably mounted shaft iBS, the said shaft being mounted in suitably apertured bosses or frame portions as represented in Figs. 6 and 7. The shaft |28 and with it the folder plate |25 is reciprocated by means of a box cam |29 carried by the Cam shaft El (see Fig. 5) which acts on a roller carried by the lower end of a vertically movable rod i3@ having its lower end biurcated and straddling the said shaft so as to be guided thereby. The upper end of the rod |30 is pivoted as indicated at |3| (Fig. '7) to one arm of a bell crank which is rockably mounted on a suitably supported shaft |32, the other arm |33 of which bell crank has pivoted to it a rod |34 as shown at 35. The other end of the rod |34 is secured to an arm |36 which depends from and is suitably secured to the said shaft |28. Rocking movement imparted to the bell crank arm 33 will, of course, be transformed into horizontal reciprocating movement of the shaft lls` and the said. folding plate member 25.

The folding wings wil-|26 are rocked on their pivots l2? by means of another box cam i3? which is also carried by said cam shaft 6|. The box cam 31 acts on a roller carried by a rod 38, the upper end of which is pivoted to the free end of a rock arm |39 which is secured to said shaft |32 which is suitably jornalled in the supporting frame structure for rocking movement. A pair of relatively spaced arms lfi--lllii are mounted on said rock -shaft |32 to rock therewith, and the upper ends of said arms are slotted to embrace ears or studs |4l--l4l which extend laterally from' the sides of a sleeve-like member |42 which is slidably mounted on the shaft E28. The s1eeve-|42 is provided with, opposltelyA extending ears ,M3- |43 which.

have their outer ends connected by means of links Mil- |44 to the respective folding plates |26-|26. It will be seen that sliding movement imparted to the sleeve |42 will effect rocking movement of the folding p-lates |26 about their pivots |27. Such movement is, of course, effected mainly after the end plate |25 comesvto rest, this member being first advanced so as to more or less clamp a body blank against the adjacent side wall of the mandrel. Thereafter the folding Wings |26|26 are actuated to fold portions of the body blank across the ODIJOsite wide walls of the mandrel as is shown in Fig. 6. An end portion of the blank remains to be folded across the opposite narrow side of the mandrel, and this is effected by means of a folder |45 which is carried by the upper end of a vertically disposed rock shaft M6. The rock shaft |46 is suitably journalled in bearings carried by the frame structure of the machine, and its lower end has secured to it an arm |4'| (see Figs. 3 and which has connected to it one end of a link Hi8, the other end of which is connected to a rod MQ. The rod ili has one end slidably mounted in a suitably supported bearing |56 and its other end forked and embracing the cam shaft Ell adjacent a cam |5l on said shaft. The cam |5| acts on a roller carried by the said rod |49 to reciprocate the latter and such movement is transmitted by the link |48 to the arm Ml' whereby the shaft |46 is rocked so as to cause the folder m5 to sweep across the adjacent narrow side wall of the -mandrel to therebvfold the said remaining end portion of the tubular body blank across said wall of the mandrel.

After a tubular body has been formed around the upper portion of the mandrel, the mandrel is moved upwardly from the position shown in Figs. l and 7 to the elevated position in which it is illustrated in Fig. During such upward movement of the mandrel the tubular body member formed on its upper portion is held against upward movement with the mandrel by means of ears such as indicated at |52 formed on the upper edges of the folding plates |26, said earsoverlying the upper edges of the opposite walls of said tubular body member Vertical movement of the mandrel is, of course, effected by moving its supporting shaft |24 vertically. The shaft |26 is actuated by means of a long arm |53 which is pivotally mounted on one end as kshown at |54 on a suitable bracket carried by the frame of the machine, the other end of the arm being suitably forked to embrace ,the shaft l2@ and provided with slots straddling the projecting end portions of a pin i515 which extends through a portion of said shaft l2@ (see Figs. 3, 5 and 3). The arm |53 is provided with a roller |56 which 'engages a box cam it? carried by said cam shaft @il and so formed as to impart rocking movement to said arm |53 and vertical reciprocating movement to said mandrel carrying shaft |46.

The mandrel being in its elevated-position as shown in. Fig. ll, a box blank will be delivered to the position B5 over the die member 68. Thereafter the mandrel will be lowered and the tubular body member previously formed on the upper portion of the mandrel but now located on the lowered portion thereof as shown in Fig. 1'1` will be moved downwardly to press the box blank through the die and to form the blank into a' receptacle about the lower portion of said tubular body member. 4To insure unitary downward alioce l0 movement of the mandrel |22 and the tubular body l, the mandrel is provided in its opposite wide-faces with pairs of dogs |58 which arearranged to project upwardly from `the respective faces of the mandrel to overlie the upper edge ofthe tubular body member located on the lower end portion of the mandrel. As shown in Figs. G and l1, said dogs |453 are pivotallyY supported 'by shafts |59 mounted on the inside of the man# drei and resiliently urged outwardly of the mandrel by interposed springs |60. The outward rocking movement of the dogs |58 is'v limited by engagement of the spring receiving prongs with the inside faces of the respective walls of the mandrel as indicated at i6 When the mandrel is moved upwardly through a tubular body 1 formed on the upper portion of the mandrel, said dogs |58 are forced inwardly by the tubular body walls and offer no material resistance to the indicated movement of the mandrel through the tubular body. However, the squared lower edge portions of the mandrels are arranged to abut the upper edges of the tubular body so that downward movement of the mandrel will be positively transmitted to said tubular body member as will be readily understood by examination'vof Fig. 11.

The mandrel and the tubular body act'together to force a box blank downwardly through the die 6|! and said die is so formed that the end flaps 5-5 of the blank will first be folded upwardly relative to the side wall panels 3--3 from which said flaps extend, after which the side walls 3 3 and end walls 4 -4 will be folded upwardly into right-angular relationship to the bottom panel 2. n

While the mandrel remains in its lowered position as illustrated in'Fig. I7, pressure is appliedy to the end walls 4 of the receptacle to insure' intimate engagement thereof withthe corner flaps 5 thereby to eiect secure adhesion of said' end walls to said corner naps, and therebyA to insure permanence of the box formation Awhen the box blank has been folded. 1

For the purpose of applying such pressure'to the end walls, the die 68 is suitably recessedr at its ends to house end pressureplates I.62.|62, the same being mounted for horizontal sliding movement toward and fromthe mandrel by being secured to end portions of shaft or stem-like mem-` bers |63 which are slidably seated in suitably formed portions of the die 68. Coil springs |64 stretched between portions of the die and the respectivepressure plates serve tonormallyholdY said pressure plates retracted into the recesses formed in thedie. The pressure plates are pe riodically forcedinwardly to squeeze overlapping end wall and flap portions against the adjacent portion ofthe tubular body wall and against the adjacent end of the mandrel. The meansfor yso moving the pressure plates comprises av box cam 65 carried by thecarn shaft to which acts against a roller 66 carried by an adjacent portion of a rod |61. The rod |61 has one end forked and. straddling the cam shaft 6B so as to be supported and guided thereby, and its other end is pivoted to an arm `which depends from a rock shaft ,Y |69 suitably supportedy from the framework of the machine (see Figs. 5 and 8).. vThe rock shaft |69 has secured to its opposite end arms ITB- |10 which have'their inner ends pivoted to the, lower ends of upwardly extending rods l'||-|'||. The. upper ends of the rods |,'|l arepivoted to the outer ends of short links |?!-|'|2,the innerendsV of which are pivoted on portions of thev die 68as best shown in lg. '1. The rods k,lfl IVY-are provided aleen-eee at .their upper ends with rollers ITS-lla which are adapted to engage .the outer ends of the pressure plate carrying pins H53. The arrangement :is such that when the axis of the respective rolls |13 is aligned with the axis of the pressure plate pins, the pressure plate will have been forced inwardly into pressure applying position as illus trated in Fig. 7. Vertical movement of the said rolls from said axially aligned relationship to the pins |63 will, of course, permit the springs |613 to retract the pressure plates so as to relieve the pressure on the box parts preparatory to withdrawal of the mandrel from within the tubular body of the box structure.

The box structure including the receptacle i and the tubular body 1 is held against upward movement with the mandrel by means of press ure dogs |116 which are horizontally slidably mounted in suitable openings provided in the die (see 11), said dogs being urged by suitable coil springs H to move inwardly into engagement with the tubular body portion of the box structure. The'springs |15 are of such strength that the narrow inner ends of the dogs will bite into the tubular body walls sufficiently to prevent the tubular body from following the mandrel upwardly when the latter is moved from its lowermost position to its uppermost position. The upper faces of said dogs are beveled as shown to facilitate downward movement of the receptacle between the opposed dogs, and said dogs are preferably located so as to engage the box structure adjacent its ends where the end walls will serve to prevent inward collapsing of the body walls by the pressure of said dogs.

.'The receptacle thus left within the opening of the die 68 will be forced downwardly and out of the die by the next formed box and tubular body. The receptacle being ejected from the die is lowered to a conveyor |16 to the position shown at A in Fig. 3. For effecting controlled movement of the receptacle downwardly to the conveyor |15, elevators are provided in the form of plates |-11fl11 on the upper ends of vertically slidably mounted shafts |18|18. Said shafts |18 are secured at their lower ends to a cross-head |19 (see Figs. 3 and 5). Spaced ears iil depend from said crosshead approximately midway between theisaid shafts |18. An arm |8| has one end pivoted to said cross-head between said ears |88 and its other end pivotally mounted on the shaft |54. Said arm |8| is rocked vertically about the axis of the shaft |54 by means of a suitable cam |82-which acts on a roller i183 carried by said arm 18|. The cam |82 is so formed as to effect lowering of the elevator plates |11 in properly timed relation with the downward movement of the mandrel |22 by means of which the box structure within the die opening is expelled therefrom. The downward movement of said elevator plates |11 is, of course, continued beyond movement required Aby the formation of a new box structure so` las to deposit the ejected box on the conveyor |16 as will be readily understood by examination of Fig. '7.

The various cams employed are preferably in the form of box cams, and such cams serve to positively reciprocate or rock the various parts in both directions of movement. If desired, simple peripheral or face cams may be employed in connection lwith springs for effecting traction of the variousparts. Such and other substitutions of quivalent elements or mechanisms may, of course, be made.

To adapt the mechanism 'tothe handling of tubular body blanksof `different-sizes, the manedrel |22 may be removed from its supporting, arm |23 and replaced by another ofthe desired size. Similarly, the die structure 68 as an-entire'unit may be replaced by others of the desired size. `The tubular body,` blank magazine feeding and folding plates maysimilarly be replaced as'a unit. :It will be observed that relatively few 'connections need to be changed and that those requiring changing are of simple form so as to be easy to change.

A receptacle comprising the box and theft'ue bular body i thu; formed and delivered to the conveyor |16 may be carried by the conveyor into mechanism for inserting the open lining 8 as shown in Fig. 20 and thence to mechanismfor delivering the fill F of the desired materialinto the lined receptacle. The liner of the filled receptacle may be then closed and sealed by other mechanism to which the package is carried by said conveyor, thereby producing the .closed and sealed package structure illustrated in Fig. 21, The package is then ready for the application of a cover unit 9 Yas represented in Fig. 22.

For applying a cover unit 9, the mechanism shown in Figs. 13 to 18 of the drawings is provided. The cover foins-"1g and applying meehanism embodies bansi feeding 'mechanism represented at |84, said feeding mechanism being substantially the same as the box blank feeding mechanism of the box forming unit already described. ".he cover represented at "C in Fig. 17 are fed to a die |85 which may be the same as the die 68, and a mandrel |86 movable vinto and out of said die is provided for cooperating with the die to form said cover blanks into receptacles in substantially the same manner that the box members l are formed. The mandrel in this instance may be a simple rectangular walled device inasmuch as it is not required to be moved through a tubular Wall body as is the previously described mandrel |22. The cover blanks C are formed into covers 9 within the die |85 as shown in Fig. 17, it being understood that themandrel is made of appropriate size to fit snugly within the formed cover as distinguished'from a size to fit within the tubular body. Also, instead of forcing the cover member 9 out of the die by means of the next formed cover, it is'preferable that the mandrel 336 Vbe moved through the die to such an extent as to cooperate with! the die to form the cover and to eject the cover from the die before starting its retraction or upward movement. The'covers will normally fall othe lower end of the mandrel when the covers are freed from the constricting effect of the surrounding die. However, any of Various known means may be employed for insuring separation of the formed 'cover from the mandrel incident to the retraction of the latter. Such means may comprise spring actuated plungers carried by the mandrel, or blast means arranged to blow the cover off the mandrel, and the like. Such details are not a part of the present invention, and, hen-ce. not ill'.istr"t^il.

The formed covers il are delivered from'the die into a pair of upwardly facing U-shaped arms iS'l-- and i?) which. are secured l at one end to a rock shaft |38 which is rotatably mounted in slidable bearing blocks |89. vThe bearing blocks ISS are horizontally, slidably mounted in suitable channel-shaped members 5S-1i- Horizontal sbilting notion is Vto the bearing blocks |89 and to the shaft |88 and parts carried thereby by means of a pair of arms |9||9| which have their upper ends formed to straddle portions of the shaft |88 or suitable anti-friction bearing collars thereon. The lower ends of said arms |9| are secured to a suitably journalled rock shaft |92. Said rock shaft |92 also has secured to it an upwardly extending arm |93 which is connected by means of a link |94 to suitable earn mechanism for imparting therequired rocking motion to said shaft. The cam mechanism is not herein illustrated, but may be of the same general character as that hereinbefore described for actuating other rock shafts.

It should be understood that the covers 9 are not merely thrown into the U-shaped receiving arms |81, but that they are delivered under control by the mandrel |86 and suitable elevator members |95 carried by the upper ends of vertically reciproca'ole shafts i913 which may be actuated by cam mechanism similar to that described f for controlling the elevators |11.

The cover 2 having been delivered to the carrier arms |81 is next advanced horizontally by imparting rocking movement to said arms lill. Near the end of the horizontal advancing movement of said carrier arms |81, they are rotated through an arc 180 so as to deliver the covers 9 in inverted position relative to the position in which they are formed, or, in other words, in

normal cover position ready for application to a :ive

nlled container. To effect such rotation of the cover carrying arms |81, the shaft |88 has a gear |91 secured to it and said gear is adapted to mesh with a section of a gear rack |08 which may be supported by means of a suitable bracket depending from the adjacent channel guide |90. It will be seen that when the shaft |98 reaches a position over the geai` rack |93, the gear |91 will come into mesh with said rack |98 and thereby effect rotation of the cover carrying arms to the dotted line position illustrated in Fig. 1'1 as an incident to the nal portion of the horizontal movement of said shaft |83.

The cover member 9 is delivered in outwardly teleseoped relation to upwardly converging funnel side plates 199-222 and upwardly converging funnel end plates 200. Said funnel plates |90 and 200 are secured to shafts 20| which are journalled for rotation in suitable mounting brackets as best shown in Fig. 16. Suitable spring means 202 are provided in association with each of the said funnel plate shafts to resiliently urge the same into said upwardly converging relation, such movement being suitably limited as by engagement of pins 203 extending from the shafts 20| with adjacent portions of the supporting brackets 204.

The box cover 9 will rest on the converged upper end portions of said funnel plates as shown in Fig. 18 and the cover carrying and inverting arms |81 will be returned to their initial receiving position as shown in full lines in Fig. 17.

The conveyor |12, previously referred to, isv

arranged to carry the receptacles through the lining, filling, and sealing mechanism and into the cover applying mechanism, the lled and closed packages being disposed in side to side relationship on the conveyor as illustrated in Fig. l1. A stop member 205 suitably mounted on the frame structure serves to limit the forward movement of the packages with the conveyor |16, thereby to position the leading package in vertically aligned relationship to the funnel structure formed by the funnel plates |99 and 200.

The next operation is that of elevating the foremost package structure through the funnel plates and into the overlyng cover 9. This is effected by means of an elevator structure comprising plates 205--200 mounted on the upper ends of vertically slidably mounted shafts 201 201. The shafts 201 have their lower ends secured to a suitable cross-head 203 which is connected by means of a link 209 to the free end of a rock arm 2| 0, the other end of which is pivotally mounted as indicated at 2|1 on a stationary bracket 2|2. The arm or lever 2|1! carries a cam engaging roller 2 i3 which is engaged by the periphery of a rotating cam 2M carried by a cam shaft 2 i5 which is driven by any suitable means in properly timed relationship to the various operating parts of the mechanism. The cam 2M is operative to effect vertical movement of the shafts 201 and elevator plates 29a and thereby to elevate the foremost package 2|6 and to pass the same upwardly through said funnel structure and into the overlying cover 9 in a manner which is readily apparent from an inspection Vof Figs. 17 and 18.

To prevent the cover 0 from being prematurely lifted from the funnel structure, there is provided a control comprising top plate 2 1 which is carried by the lower end of a vertical reciprocably mounted shaft 2 iii as shown in Figs. 13, 1'? and 18, said shaft 218 is slidably mounted in a suitably apertured bracket 2|9 which is xedly mounted on the frame structure of the machine. The upper end of the shaft 2|8 is pivotally and laterally slidably connected as indicated at 220 to one end of an arm or lever 22| which is pivoted intermediate its ends as shown at 222 on a bracket member extending upwardly from the bracket 2|0. The opposite end of the lever 22| has pivoted to it a link 223 which extends downwardly and has its lower end forked to t around f the cam shaft 255. The said link 223 is provided with a roller 22twhich cooperates with a box cam 225 to eifect Vertical reciprocation of the link 223 incident to the rotation of the cam 225. The cam 225 is formed to eifect'upward movement of the control plate 2|1 in such timed relation to the outward movement of the elevators 206 that the upper portion of the tubular bodyl element 1 of the lled package will be entered into the cover 9 overlying the funnel structure before the cover is permitted to move upwardly from said funnel structure. After such introduction is eilected, there may be concurrent movement of the package elevators and the cover control 2|1. but the movement should be so related that by the time that the cover controlling element 2|1 reaches its uppermost position, the elevators 203 will have caused the tubular body portion 1 of the filled package to be completely inserted into the cover structure.

When the elevators 206 are in their uppermost position, they are approximately horizontally aligned with or slightly higher-than the receiving end portion 226 of an inclined or other conveyor structure 221. Means are provided for moving the filled and now completely covered package laterally from said elevators 206 to said conveyor receiving end portion 225. The means for so moving the completed package comprises a pusher structure embodying an arm 223 which extends from a squared shaft or bar 220 slidably mounted in suitable frame supported bearings 230 (Figs. 13, 16 and 18). The free end of the arm 228 is provided with a pair of depending fingers 228e: or other suitable enlargement for engaging the rear side ofthe completed package, 

